SciELO - Scientific Electronic Library Online

vol.19 issue1Evaluation of Disinfectants to Prevent Clavibacter michiganensis subsp. michiganensis Transmission in Tomato by Pruning ShearsEstimating Soil Loss by Water Erosion in Three Different Horticultural Management Systems in Southern Uruguay author indexsubject indexarticles search
Home Pagealphabetic serial listing  

Services on Demand



Related links


Agrociencia (Uruguay)

Print version ISSN 1510-0839On-line version ISSN 2301-1548


JORGE, Gabriella; PEREZ BIDEGAIN, Mario; TERRA, Jose  and  SAWCHIK, Jorge. WEPP Soil Erosion Model Adjustment for an Abruptic Argiudoll and a Vertic Argiudoll in Uruguay. Agrociencia Uruguay [online]. 2015, vol.19, n.1, pp.84-93. ISSN 1510-0839.

Erosion estimation models are helpful tools for planning sustainable agriculture systems. The model Water Erosion Prediction Project (WEPP) estimates rill and interrill erosion, as well as sediment load and deposition, including temporal and spatial distribution. This enables the estimation of both in-site and off-site effects such as deposition in water bodies, making it useful for environmental studies. Although this model is based on the physical processes that occur in the soil, site-specific adjustments are needed. The aim of this study was to adjust the WEPP model for the representative Uruguayan agriculture soils of the West coast and East rolling plains. We used the data base of the runoff plots from INIA La Estanzuela y Palo a Pique, and we compared erosion values estimated with WEPP and those estimated with USLE/RUSLE, in terms of annual means. In addition, erosion estimated with WEPP was compared with the data measured at an annual scale. WEPP estimated erosion with high precision in both sites, comparable to USLE (R2=0.97 y 0.98 respectively). A Nash-Sutcliffe value of 0.92 indicates a very good performance. To continue this research line, measures of local soil physical variables or the development of alternative pedotransfer equations will be needed.


        · abstract in Spanish     · text in Spanish     · Spanish ( pdf )


Creative Commons License All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License